I'm supposed to travel to Budapest tomorrow and my brothers flight was scheduled to depart this morning so we had to monitor the news. As the traditional media take ages to update, here are a couple of online resources to check:

Eurocontrol CFMU : The news headlines section updates at least hourly, listing all closed airspace. Note that times are in UTC.

Met Office ash cloud forcast : Updated every 4 hours.

Eurocontrol on twitter : eurocontrol is doing a good job posting updates and links to interesting resources on twitter.

Brussels airport : current status of Brussels Airport.

Images from METEOSAT-9 : satellite image with dust concentrations

Webcams : want to see the volcano that causing all this trouble? Its not really going to help you though..

And of course, check the airline website. SN Brussels has canceled all flights until Monday noon but getting some information from Hungarian airlines has proven to be more difficult.

Unfortunately, many people traveling to San Fransisco for drupalcon are also stranded, they even created a map to see where everyone is: Drupalistas stuck in Europe. Some people are already planning minicons in the UK and Belgium for those who can't make it to SF, this drupalcon won't soon be forgotten :)